Klee is an energetic and outgoing girl. She has a particular talent for creating explosives. In part due to her young age, Klee can be very naïve at times and easily confused by complicated topics. While she's an official member of the Knights of Favonius, Klee's antics often get her into trouble. she is particularly fond of "fish blasting", tossing bombs into lakes full of fish. She often tries to flee to avoid punishment but is eventually caught by Jean who sends her to solitary confinement.